1662
1662 is the year the Royal Society received its royal charter.
- Even
- Composite
Where 1662 fits
Why 1662 is special
Its journal, begun three years later, established the practices of dated publication and peer review that still define scientific priority. Being first now means publishing first.
Same number, different meanings
How 1662 is understood across different contexts — never implying one meaning because of another.
- Mathematics
Its journal, begun three years later, established the practices of dated publication and peer review that still define scientific priority. Being first now means publishing first.
- History
In 1662, the Royal Society received its royal charter (England).
- Science
The Royal Society's Philosophical Transactions established that a discovery belongs to whoever published it first and that claims are reviewed before appearing. Both conventions are so embedded that their invention is easy to overlook.
1662 is part of
Factors & digit properties
- Divisors (8)
- 1, 2, 3, 6, 277, 554, 831, 1662
- Prime factorisation
- 2 × 3 × 277
- Digit sum
- 15
- Digital root
- 6
Representations
- Decimal
- 1662
- Scientific notation
- 1.662 × 10^3
Roman numerals
M D C L X I I
Binary
1 1 0 0 1 1 1 1 1 1 0
1 × 1,024 + 1 × 512 + 0 × 256 + 0 × 128 + 1 × 64 + 1 × 32 + 1 × 16 + 1 × 8 + 1 × 4 + 1 × 2 + 0 × 1 = 1,662
Octal
3 1 7 6
3 × 512 + 1 × 64 + 7 × 8 + 6 × 1 = 1,662
Hexadecimal
6 7 e
6 × 256 + 7 × 16 + e × 1 = 1,662
Read as powers of two: 1,024 + 512 + 64 + 32 + 16 + 8 + 4 + 2 = 1,662.
In historical numeral systems
Egyptian
1 lotus, 6 coils of rope, 6 hobbles, 2 strokes
1 × 1,000 + 6 × 100 + 6 × 10 + 2 × 1 = 1,662. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 7 vertical wedges (sixties place), 4 corner wedges + 2 vertical wedges (units place)
27 × 60 + 42 = 1662. Places are separated by a space on the tablet, with the higher place written first.
Systems that simply cannot reach this value are left out. Where a script needs a font most readers do not have, the reading is given instead of the glyphs — see number systems for each system in full.
Other mathematical patterns
- Abundant number
Related numbers & connections
1662 is a year in the 17th century, in the 1660s.
Browne's 1646 study of common errors and the Royal Society's founding motto — take nobody's word for it — express the same shift from authority to verification.
View 1646 →History
In 1662, the Royal Society received its royal charter (England).
DocumentedHistoryGeography: EnglandPeriod: 1662
Science
The Royal Society's Philosophical Transactions established that a discovery belongs to whoever published it first and that claims are reviewed before appearing. Both conventions are so embedded that their invention is easy to overlook.
DocumentedScienceGeography: EnglandPeriod: 1662
Common questions
Is 1662 a prime number?
No, 1662 is not prime.
What are the factors of 1662?
The factors of 1662 are 1, 2, 3, 6, 277, 554, 831, 1662.
What is 1662 in Roman numerals?
1662 in Roman numerals is MDCLXII.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 2 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026